Machine for polishing- buckles



ITEI) STATES .PATENT OFFICE.

ROBERT G. PINE, OF SING SING, NEWY YORK.

MACHINE FOR POLISHING- BUCKLES.

Specification forming part of Letters Patent No. 14,683, dated April 8,1856; Ressued May 12, 1868, No. 2,927.

T all fui/wm t may concern Be it known that I, ROBERT G. PINE, of SingSing, in the county of Westchester and State of New York, have inventeda new and improved machine for polishing buckles and other articlesconstructed of metal, the outer or face sides of which are onlypolished; and I do hereby declare that the following is a full, clear,and exact description of the same, reference being had to the annexeddrawings, making a part of this specification, in which- Figure 1, is atransverse vertical section of my improvement, as, Fig. 2, showing theplane of section. Fig. 2, is a plan or top view of ditto.

Similar letters of reference indicate corresponding parts in the twofigures.

My invention consists in securing buckles or other articles in clampswhich are attached to rotating shafts working in yielding or elasticbearings, said shafts being placed at each side of a polishing wheel andguide wheels, so that the work or articles to be polished will beproperly presented to the polishing wheel. The shafts, while rot-ating,are moved longitudinally, so that the whole surface of the work will bepresented to the polishing wheel.

To enable others, skilled in the art, to make and use my invention, Iwill proceed to describe its construction and operation.

A, represents a rectangular framing having a shaft B, on its upper part,said shaft having a polishing wheel C, upon it, constructed in the usualor any proper way, and guide wheels D, D, which may be constructed ofhard wood or metal. The guide wheels are of the same diameter as thepolishing wheel, and the three wheels are placed at equal distancesapart upon t-he shaft- B.

E, E, are two shafts which are placed one at each side of the wheels C,D, D. One end of these shafts fit in sockets F, F, which work inbearings a, a,- at one side of the framing A. The sockets have each anoblong slot b, made through them, and pinsc, which pass transverselythrough the ends of the shafts fit in these slots b. The opposite endsof the shafts E, E, have screw threads d, d, cut on them and the screwthreads work in internal threads cut in bearings e, e, on

the framing A. The bearings a, a, e, e, are allowed to slide on theframing A, and they have spiral springs f, bearing against their outersides. On the shafts E, E, there are placed clamps F, between the endsof which, one end of the buckles A, or other articles to be polished areplaced. Bars G, are also placed on the shafts, which bars serve as restsfor the opposite ends of the buckles or other articles.

The shaft B, is rotated by a belt H, which passes around a pulley I, onthe shaft B, and also around a pulley J, on a shaft J at the lower partkof the framing. The shafts E, E, have each a pulley K, at one end,around which a belt L passes, said belt also passing around a pulley M,on the shaft J The operation is as follows. Motion is given the shaft Jin any proper manner and the shafts E, E, B, are rotated by theirrespective belts L, H. The spiral springs f, keeping the face of thebuckles A', against the periphery of the polishing wheel C, and theguide wheels D, D, preventing the buckles from bearing too hard againstthe polishing wheel. Were the guide wheels not employed the polishingwheel would be liable to cut or wear off the sharp corners of thebuckles. As the shafts E, E, rotate, they gradually move longitudinallyin consequence of the screw threads cl, eZ, working in the threads inthe bearings e, e, and consequently, t-he whole outer or face sides ofthe buckles will be polished.

It will be understood that the articles being polished, must be all ofthe same form, that is, those that are polished at the same time, inorder that the articles which bear against the guide wheels may causethe article which bears against the polishing wheel to be properlypresented to it.

Any proper number of polishing and guide wheelsl may be employed and theshafts E, E, may be of such a length that a large number of articles maybe ,polished at the same time. When the articles are polished, theshafts E, E, are moved back by means of a crank.

rlhe above machine will polish rapidly and well, and is therefore alabor-saving machine. It will be extremely valuable in manufactoresWhere many articles are now I longitudinally moving shafts E, E,provided polished by hand, or by the slow process of with clamps F', theshafts E, E, Working 1n l0 an ordinary polishing Wheel. yielding orelastic bearings substantially as Having thus described my invention,shown for the purpose specified. 5 what I claim as new and desire tosecure by ROBERT Gr. PINE.

Letters Patent, is, Witnesses:

The combination of the polishing and JAMES F. BUCKLEY, guide Wheels C,D, D, with the rotating and WM. TUsoI-L [FIRST PRINTED 1912.]

